What type of study is this?

This is a Quantitative Study study.

September 17, 2025

MultiFlowSeg: Unified deep learning model for multi-vessel classification and segmentation of phase-contrast MRI in single ventricle patients

Key Points

MultiFlowSeg achieved a median Dice score of 0.91, demonstrating high segmentation accuracy for critical blood vessels.
The method processed 630 MRI exams, ensuring rapid analysis and reducing manual intervention for flow quantification.
Segmentation successfully identified five major blood vessels, enhancing patient outcome predictions using standardized metrics.
Automation via deep learning simplifies data extraction and analysis from the FORCE registry of single-ventricle patients.

Abstract

Motivation: The FORCE registry of single-ventricle patients contains >5,000 MRI scans, requiring standardized segmentation of five major blood vessels for flow quantification to predict patient outcomes —a challenging task due to complex single-ventricle anatomy. Goal(s): Automate flow quantification for the left and right pulmonary arteries, aorta, and superior and inferior vena cavae. Approach: Develop a unified deep learning model and automated pipeline that extracts phase-contrast flow planes from the registry and performs simultaneous classification and segmentation of the five vessels. Results: MultiFlowSeg achieved a median Dice score of 0.91 on 50 test sets and 89% segmentation success across 630 exams processed through the pipeline. Impact: We have developed a pipeline that uses our novel MultiFlowSeg model to automate the extraction, classification, and segmentation of phase-contrast MRI images. It enables rapid, accurate flow quantification for five blood vessels in a single ventricle registry without manual input.

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MultiFlowSeg: Unified deep learning model for multi-vessel classification and segmentation of phase-contrast MRI in single ventricle patients

Key Points

Abstract

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